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TM 9-2320-360-20-1
NOTE
The following flow chart should only be
used if DDEC troubleshooting was
started on p. 2-80 and you were referred
here.
Turn ENGINE switch ON (engine not running)
and observe CHECK GAUGES indicator
VOLTAGE TEST
(1)
Turn ENGINE switch OFF.
(2)
Disconnect vehicle harness
connector at ECM.
(3)
Turn ENGINE switch ON (engine
not running) while observing
CHECK GAUGES indicator.
Check
terminals
especially
at
vehicle
harness connectors (both ECM and harness
side) for damage, bent, corroded, and
unseated pins or sockets.
Pay close attention to B2 and B3.
2-331
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